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https://blog.csdn.net/jiadajing267/article/details/81269067 
索引类型B-Tree索引按顺序存储

B-Tree 索引可以加快访 ...</div><a class="more" href="/blog/posts/96562c9e/#more" style="margin-top: 14px">阅读更多</a><hr></div><div class="recent-post-item article-container"><a class="article-title" href="/blog/posts/7b223055/">Mysql 内连接，外连接傻傻分不清楚？一文介绍清楚</a><time class="post-meta__date"><i class="fa fa-calendar" aria-hidden="true"></i> 2021-03-22</time><span class="article-meta"><span class="article-meta__separator">|</span><i class="fa fa-inbox article-meta__icon" aria-hidden="true"></i><a class="article-meta__categories" href="/blog/categories/Mysql/">Mysql</a></span><span class="article-meta tags"><span class="article-meta__separator">|</span><i class="fa fa-tag article-meta__icon" aria-hidden="true"></i><a class="article-meta__tags" href="/blog/tags/MySQL/">MySQL</a></span><div class="content">连接JOIN 按照功能大致分为如下三类：

INNER JOIN（内连接,或等值连接）：获取两个表中字段匹配关系的记录。
LEFT （OUTER） JOIN（左连接）：  **以左表为基础 **获取左表所有记录，即使右表没有对应匹配的记录。
RIGHT （OUTER）JOIN（右连接）：  **以右 ...</div><a class="more" href="/blog/posts/7b223055/#more" style="margin-top: 14px">阅读更多</a><hr></div><div class="recent-post-item article-container"><a class="article-title" href="/blog/posts/920b4d45/">Docker搭建Redis集群</a><time class="post-meta__date"><i class="fa fa-calendar" aria-hidden="true"></i> 2021-03-18</time><span class="article-meta"><span class="article-meta__separator">|</span><i class="fa fa-inbox article-meta__icon" aria-hidden="true"></i><a class="article-meta__categories" href="/blog/categories/Redis/">Redis</a></span><span class="article-meta tags"><span class="article-meta__separator">|</span><i class="fa fa-tag article-meta__icon" aria-hidden="true"></i><a class="article-meta__tags" href="/blog/tags/Redis/">Redis</a><span class="article-meta__link">-</span><i class="fa fa-tag article-meta__icon" aria-hidden="true"></i><a class="article-meta__tags" href="/blog/tags/Docker/">Docker</a><span class="article-meta__link">-</span><i class="fa fa-tag article-meta__icon" aria-hidden="true"></i><a class="article-meta__tags" href="/blog/tags/%E9%9B%86%E7%BE%A4/">集群</a></span><div class="content">首先要了解redis的集群概念，这里不再赘述
首先，我们启用三个不同的端口作为从机
123docker run -d -p 6379:6379 --name redis01 redisdocker run -d -p 6380:6379 ----name redis02 redisdocker ru ...</div><a class="more" href="/blog/posts/920b4d45/#more" style="margin-top: 14px">阅读更多</a><hr></div><div class="recent-post-item article-container"><a class="article-title" href="/blog/posts/f7ede91d/">Java基础</a><time class="post-meta__date"><i class="fa fa-calendar" aria-hidden="true"></i> 2021-03-16</time><span class="article-meta"><span class="article-meta__separator">|</span><i class="fa fa-inbox article-meta__icon" aria-hidden="true"></i><a class="article-meta__categories" href="/blog/categories/Java/">Java</a></span><span class="article-meta tags"><span class="article-meta__separator">|</span><i class="fa fa-tag article-meta__icon" aria-hidden="true"></i><a class="article-meta__tags" href="/blog/tags/Java/">Java</a></span><div class="content">JAVA基础数据基本数据类型Java 有8种基本数据类型
数字类型: int 、short、long、byte、double、float
布尔类型: boolean
字符类型: char



整型
范围
空间



byte
-128~127
1字节


short
-32768~32767
2字 ...</div><a class="more" href="/blog/posts/f7ede91d/#more" style="margin-top: 14px">阅读更多</a><hr></div><div class="recent-post-item article-container"><a class="article-title" href="/blog/posts/6b3e1469/">spring</a><time class="post-meta__date"><i class="fa fa-calendar" aria-hidden="true"></i> 2021-01-20</time><div class="content">Spring简介优点
轻量级、非入侵式的框架

免费开源框架（容器）

控制反转，，面向切面

支持事务处理，对框架的整合


拓展
Spring Boot
快速开发脚手架
约定大于配置

Spring Cloud
SpringCloud基于Springboot实现


IOCIOC理论推导
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